langs a-z

Task/Distributed-programming/Objective-C/distributed-programming-5.m

@@ -0,0 +1,43 @@
+#import <Foundation/Foundation.h>
+#import "ActionObjectProtocol.h"
+
+int main(void)
+{
+  NSAutoreleasePool *pool;
+  NSArray *args;
+  id <ActionObjectProtocol> action;
+  NSString *msg, *backmsg;
+
+  pool = [[NSAutoreleasePool alloc] init];
+
+  action = (id <ActionObjectProtocol>)
+    [NSConnection
+      rootProxyForConnectionWithRegisteredName: @"DistributedAction"
+      host: @"localhost"
+      usingNameServer: [NSSocketPortNameServer sharedInstance] ];
+
+  if (action == nil)
+  {
+    NSLog(@"can't connect to the server");
+    exit(EXIT_FAILURE);
+  }
+
+  args = [[NSProcessInfo processInfo] arguments];
+
+  if ([args count] == 1)
+  {
+    NSLog(@"specify a message");
+    exit(EXIT_FAILURE);
+  }
+
+  msg = [args objectAtIndex: 1];
+
+  // "send" (call the selector "sendMessage:" of the (remote) object
+  // action) the first argument's text as msg, store the message "sent
+  // back" and then show it in the log
+  backmsg = [action sendMessage: msg];
+  NSLog("%@", backmsg);
+
+  [pool release];
+  return 0;
+}